I haven't used the robots for a while and when I get them out, and I can write programs and load the programs onto 12 robots. 11 of the robots work fine, but one won't recognize the light or sound sensor. It recognizes a touch sensor. I have verified the sensors works by swapping sensors and cables with other robots (multiple times, with another teacher who is an electrical engineer watching). If I try going to "View" the sensors (on the correct ports), I get a value of "0". I have reloaded the firmware. Any ideas? Donald Williams P.E. Phoebus High School 100 Ireland Street Hampton, VA 23663 757-727-1031 -- ---- CONFIDENTIALITY NOTICE: This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain information that is legally privileged, confidential and/or exempt from disclosure under applicable law. If you are not an intended recipient, you may not review, use, copy, disclose or distribute this message or any of the information contained in this message to anyone. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of this message and any attachments. Hampton City Schools may monitor e-mail messages to and from the Hampton City Schools network. Unintended transmission shall not constitute waiver of any privilege or confidentiality protected under federal statutes, the Virginia Freedom of Information Act or any applicable laws. -- To UNSUBSCRIBE or CHANGE your settings, please visit https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or leave the list". -- VADCFLL administrative announcements are sent via VADCFLL-ANNOUNCEMENTS-L. Visit https://listserv.jmu.edu/archives/vadcfll-ANNOUNCEMENTS-l.html to subscribe.